TE Connectivity 3-1676902-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 3-1676902-1 is a 1 µF molded tantalum capacitor rated for 35 V operation in a 1411 (3528 Metric) surface mount package. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design requirements and production continuity. Substitute parts maintain functional compatibility through matching capacitance, tolerance, package geometry, and operating temperature range while offering enhanced voltage ratings and active product status.

Substiute Parts

3-1676902-1

TE Connectivity Passive ProductIn Stock: 9833-1676902-1 Datasheet

Current PartRFQ

293D105X0050B2TE3

Vishay SpragueIn Stock: 1542293D105X0050B2TE3 Datasheet

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293D105X9050B2TE3

Vishay SpragueIn Stock: 2514293D105X9050B2TE3 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TE Connectivity 3-1676902-1 are qualified based on the following electrical and mechanical parameters:

Matching Parameters (Required for Substitution):

• Capacitance: 1 µF (exact match)
• Package / Case: 1411 (3528 Metric) (identical footprint and mounting)
• Mounting Type: Surface Mount (same assembly process)
• Operating Temperature Range: -55°C ~ 125°C (identical thermal specification)
• Type: Molded Tantalum (same component technology)
• Moisture Sensitivity Level: 1 (Unlimited) (same handling requirements)

Allowable Variations:

• Voltage - Rated: Substitute parts rated at 50 V exceed the 35 V requirement, providing enhanced voltage margin
• Tolerance: Substitute parts available in both ±20% and ±10%, with ±10% representing improved precision
• ESR: Substitute parts specified at 6.7 Ohm remain within acceptable operational parameters relative to the original 6.5 Ohm specification

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: Vishay Sprague 293D105X0050B2TE3

The Vishay Sprague 293D105X0050B2TE3 provides direct functional equivalence to the obsolete TE Connectivity 3-1676902-1. This part maintains identical capacitance (1 µF), tolerance (±20%), package geometry (1411/3528 Metric), and operating temperature range (-55°C ~ 125°C). The rated voltage increases from 35 V to 50 V, establishing enhanced voltage margin for circuit protection. ESR specification of 6.7 Ohm remains within acceptable operational parameters. The part carries Active product status with ROHS3 compliance and REACH Unaffected certification, supporting long-term supply chain continuity.

Secondary Substitute: Vishay Sprague 293D105X9050B2TE3

The Vishay Sprague 293D105X9050B2TE3 offers identical electrical and mechanical compatibility with the original part while providing improved capacitance tolerance of ±10% compared to the original ±20% specification. This part is suitable for applications requiring tighter capacitance control. Voltage rating (50 V) and all other parameters match the primary substitute. Active product status and ROHS3 compliance ensure supply availability and regulatory compliance.

Selection Basis:

Both substitute parts are qualified based on matching capacitance, package footprint, mounting type, operating temperature range, and moisture sensitivity classification. The voltage rating increase from 35 V to 50 V represents an allowable enhancement that does not compromise circuit compatibility. Active product status of both substitutes ensures availability for current and future production requirements, addressing the obsolescence of the original TE Connectivity component.

Frequently Asked Questions (FAQ)

Q: Can the Vishay Sprague 293D105X0050B2TE3 directly replace the TE Connectivity 3-1676902-1 in existing designs?

A: Yes. Both parts share identical capacitance (1 µF), tolerance (±20%), package geometry (1411/3528 Metric), and operating temperature range (-55°C ~ 125°C). The increased voltage rating (50 V vs. 35 V) provides enhanced circuit margin without affecting compatibility.

Q: What is the difference between the two Vishay Sprague substitute parts?

A: The primary difference is capacitance tolerance. The 293D105X0050B2TE3 maintains ±20% tolerance matching the original part, while the 293D105X9050B2TE3 provides tighter ±10% tolerance. Both parts are identical in all other electrical and mechanical specifications.

Q: Are the substitute parts physically compatible with the original PCB layout?

A: Yes. Both substitute parts use the identical 1411 (3528 Metric) package with matching footprint dimensions (0.138" L x 0.110" W / 3.50mm x 2.80mm) and maximum seated height (0.083" / 2.11mm). Surface mount assembly processes remain unchanged.

Q: What is the significance of the voltage rating increase from 35 V to 50 V?

A: The higher voltage rating provides additional safety margin in the circuit. A 50 V rated capacitor can be used in applications designed for 35 V operation without functional degradation. This represents a conservative design practice that enhances component reliability.

Q: Do the substitute parts require different handling or storage procedures?

A: No. Both substitute parts maintain Moisture Sensitivity Level 1 (Unlimited), identical to the original part. Standard handling and storage procedures for molded tantalum capacitors apply without modification.

Q: Are the substitute parts compliant with current regulatory requirements?

A: Yes. Both Vishay Sprague substitute parts carry ROHS3 compliance and REACH Unaffected certification, meeting current regulatory standards for electronic component manufacturing and distribution.

Q: What is the ESR difference between the original and substitute parts?

A: The original part specifies 6.5 Ohm ESR, while substitute parts specify 6.7 Ohm ESR. This 0.2 Ohm difference remains within acceptable operational parameters for general purpose tantalum capacitor applications and does not affect circuit performance in standard configurations.